/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Feed Result Service.
 *
 * The Initial Developer of the Original Code is Google Inc.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Ben Goodger <beng@google.com>
 *   Robert Sayre <sayrer@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"
interface nsIURI;
interface nsIRequest;
interface nsIFeedResult;

/**
 * nsIFeedResultService provides a globally-accessible object for retrieving
 * the results of feed processing.
 */
[scriptable, uuid(f3262589-48b2-4019-9947-90e5269bbfb9)]
interface nsIFeedResultService : nsISupports
{
  /**
   * When set to true, forces the preview page to be displayed, regardless
   * of the user's preferences.
   */
  attribute boolean forcePreviewPage;

  /**
   * Adds a URI to the user's specified external feed handler, or live 
   * bookmarks. 
   * @param   uri
   *          The uri of the feed to add.
   * @param   title
   *          The title of the feed to add.
   * @param   subtitle
   *          The subtitle of the feed to add.
   */
  void addToClientReader(in AUTF8String uri, 
                         in AString title,
                         in AString subtitle);

  /**
   * Registers a Feed Result object with a globally accessible service
   * so that it can be accessed by a singleton method outside the usual
   * flow of control in document loading.
   *
   * @param   feedResult
   *          An object implementing nsIFeedResult representing the feed.
   */
  void addFeedResult(in nsIFeedResult feedResult);

  /**
   * Gets a Feed Handler object registered using addFeedResult.
   *
   * @param   uri
   *          The URI of the feed a handler is being requested for
   */
  nsIFeedResult getFeedResult(in nsIURI uri);

  /**
   * Unregisters a Feed Handler object registered using addFeedResult.
   * @param   uri
   *          The feed URI the handler was registered under. This must be
   *          the same *instance* the feed was registered under.
   */
  void removeFeedResult(in nsIURI uri);
};